Examples with BasicBlock org.jikesrvm.compilers.opt.ir.BasicBlock used on opensource projects

Example 61 with BasicBlock

use of org.jikesrvm.compilers.opt.ir.BasicBlock in project JikesRVM by JikesRVM.

the class GenerationContextTest method specializationOfParametersIsSupported.

@Test
public void specializationOfParametersIsSupported() throws Exception {
    Class<?>[] argumentTypes = { Object.class };
    TypeReference typeRef = JikesRVMSupport.getTypeForClass(Uninterruptible.class).getTypeRef();
    TypeReference[] specializedArgumentTypes = { typeRef };
    NormalMethod nm = getNormalMethodForTest("emptyStaticMethodWithObjectParam", argumentTypes);
    CompiledMethod cm = new OptCompiledMethod(-1, nm);
    OptOptions opts = new OptOptions();
    InlineOracle io = new DefaultInlineOracle();
    GenerationContext gc = new GenerationContext(nm, specializedArgumentTypes, cm, opts, io);
    InlineSequence inlineSequence = new InlineSequence(nm);
    assertThatInlineSequenceWasSetCorrectly(gc, inlineSequence);
    assertThatNumberOfParametersIs(gc, 1);
    RegisterOperand objectRegOp = getThisOperand(gc);
    assertThatRegOpHoldsClassType(objectRegOp);
    assertThatRegOpHasDeclaredType(objectRegOp);
    Register objectReg = gc.localReg(0, TypeReference.Uninterruptible);
    assertThatRegOpIsLocalRegOfRegister(objectRegOp, objectReg);
    BasicBlock prologue = gc.getPrologue();
    assertThatPrologueBlockIsSetupCorrectly(gc, inlineSequence, prologue);
    assertThatFirstInstructionInPrologueIsPrologue(inlineSequence, prologue);
    assertThatBlockOnlyHasOneRealInstruction(prologue);
    assertThatPrologueOperandIsRegOpFromLocalNr(prologue, objectRegOp, 0);
    assertThatEpilogueIsForVoidReturnMethod(gc, inlineSequence);
    assertThatExitBlockIsSetCorrectly(gc);
    assertThatDataIsSavedCorrectly(nm, cm, io, gc);
    assertThatReturnValueIsVoid(gc);
    assertThatGCHasNoExceptionHandlers(gc);
    assertThatRegisterPoolExists(gc);
    assertThatChecksWontBeSkipped(gc);
}

Example 62 with BasicBlock

use of org.jikesrvm.compilers.opt.ir.BasicBlock in project JikesRVM by JikesRVM.

the class GenerationContextTest method inliningInstanceMethodWithRegisterReceiverNoNarrowing.

@Test
public void inliningInstanceMethodWithRegisterReceiverNoNarrowing() throws Exception {
    NormalMethod nm = getNormalMethodForTest("methodForInliningTests");
    CompiledMethod cm = new OptCompiledMethod(-1, nm);
    OptOptions opts = new OptOptions();
    InlineOracle io = new DefaultInlineOracle();
    GenerationContext gc = new GenerationContext(nm, null, cm, opts, io);
    Class<?>[] argumentTypes = { Object.class, double.class, int.class, long.class };
    NormalMethod callee = getNormalMethodForTest("emptyInstanceMethodWithParams", argumentTypes);
    MethodOperand methOp = MethodOperand.VIRTUAL(callee.getMemberRef().asMethodReference(), callee);
    Instruction callInstr = Call.create(CALL, null, null, methOp, 5);
    RegisterOperand receiver = createMockRegisterOperand(callee.getDeclaringClass().getTypeRef());
    assertFalse(receiver.isPreciseType());
    assertFalse(receiver.isDeclaredType());
    receiver.setPreciseType();
    Call.setParam(callInstr, 0, receiver);
    RegisterOperand objectParam = prepareCallWithObjectParam(callInstr);
    RegisterOperand doubleParam = prepareCallWithDoubleParam(callInstr);
    RegisterOperand intParam = prepareCallWithIntParam(callInstr);
    RegisterOperand longParam = prepareCallWithLongParam(callInstr);
    callInstr.setPosition(new InlineSequence(nm));
    ExceptionHandlerBasicBlockBag ebag = getMockEbag();
    int nodeNumber = 12345;
    gc.getCfg().setNumberOfNodes(nodeNumber);
    GenerationContext child = gc.createChildContext(ebag, callee, callInstr);
    assertThatStateIsCopiedFromParentToChild(gc, callee, child, ebag);
    assertThatReturnValueIsVoid(child);
    RegisterOperand thisArg = child.getArguments()[0].asRegister();
    TypeReference calleeClass = callee.getDeclaringClass().getTypeRef();
    assertSame(thisArg.getType(), calleeClass);
    RegisterOperand expectedLocalForReceiverParam = child.makeLocal(0, thisArg);
    assertTrue(thisArg.sameRegisterPropertiesAs(expectedLocalForReceiverParam));
    RegisterOperand firstArg = child.getArguments()[1].asRegister();
    RegisterOperand expectedLocalForObjectParam = child.makeLocal(1, firstArg);
    assertTrue(firstArg.sameRegisterPropertiesAs(expectedLocalForObjectParam));
    RegisterOperand secondArg = child.getArguments()[2].asRegister();
    RegisterOperand expectedLocalForDoubleParam = child.makeLocal(2, secondArg);
    assertTrue(secondArg.sameRegisterPropertiesAs(expectedLocalForDoubleParam));
    RegisterOperand thirdArg = child.getArguments()[3].asRegister();
    RegisterOperand expectedLocalForIntParam = child.makeLocal(4, thirdArg);
    assertTrue(thirdArg.sameRegisterPropertiesAs(expectedLocalForIntParam));
    RegisterOperand fourthArg = child.getArguments()[4].asRegister();
    RegisterOperand expectedLocalForLongParam = child.makeLocal(5, fourthArg);
    assertTrue(fourthArg.sameRegisterPropertiesAs(expectedLocalForLongParam));
    InlineSequence expectedInlineSequence = new InlineSequence(callee, callInstr.position(), callInstr);
    assertEquals(expectedInlineSequence, child.getInlineSequence());
    assertThatPrologueAndEpilogueAreWiredCorrectlyForChildContext(ebag, nodeNumber, child);
    Enumeration<Instruction> prologueRealInstr = child.getPrologue().forwardRealInstrEnumerator();
    Instruction receiverMove = prologueRealInstr.nextElement();
    RegisterOperand expectedReceiver = receiver.copy().asRegister();
    assertMoveOperationIsCorrect(callInstr, REF_MOVE, expectedLocalForReceiverParam, expectedReceiver, receiverMove);
    Instruction objectMove = prologueRealInstr.nextElement();
    RegisterOperand objectParamCopy = objectParam.copy().asRegister();
    assertMoveOperationIsCorrect(callInstr, REF_MOVE, expectedLocalForObjectParam, objectParamCopy, objectMove);
    Instruction doubleMove = prologueRealInstr.nextElement();
    RegisterOperand doubleParamCopy = doubleParam.copy().asRegister();
    assertMoveOperationIsCorrect(callInstr, DOUBLE_MOVE, expectedLocalForDoubleParam, doubleParamCopy, doubleMove);
    Instruction intMove = prologueRealInstr.nextElement();
    RegisterOperand intParamCopy = intParam.copy().asRegister();
    assertMoveOperationIsCorrect(callInstr, INT_MOVE, expectedLocalForIntParam, intParamCopy, intMove);
    Instruction longMove = prologueRealInstr.nextElement();
    RegisterOperand longParamCopy = longParam.copy().asRegister();
    assertMoveOperationIsCorrect(callInstr, LONG_MOVE, expectedLocalForLongParam, longParamCopy, longMove);
    assertThatNoMoreInstructionsExist(prologueRealInstr);
    BasicBlock epilogue = child.getEpilogue();
    assertThatEpilogueLabelIsCorrectForInlinedMethod(child, expectedInlineSequence, epilogue);
    assertThatEpilogueIsEmpty(epilogue);
    assertThatNoRethrowBlockExists(child);
    assertThatChecksWontBeSkipped(gc);
}

Example 63 with BasicBlock

use of org.jikesrvm.compilers.opt.ir.BasicBlock in project JikesRVM by JikesRVM.

the class SplitBasicBlockTest method assertThatInstructionCountForEachBlockIsAtMost.

private void assertThatInstructionCountForEachBlockIsAtMost(IR ir, int maxInstrPerBlock) {
    Enumeration<BasicBlock> blocks = ir.getBasicBlocks();
    assertThat(blocks.hasMoreElements(), is(true));
    while (blocks.hasMoreElements()) {
        BasicBlock block = blocks.nextElement();
        // Note: This is slow but it's required to determine if the compiler phase
        // works correctly
        int numberOfRealInstructions = block.getNumberOfRealInstructions();
        assertThat(numberOfRealInstructions, lessThanOrEqualTo(maxInstrPerBlock));
    }
}

Example 64 with BasicBlock

use of org.jikesrvm.compilers.opt.ir.BasicBlock in project JikesRVM by JikesRVM.

the class SplitBasicBlockTest method branchesAtTheEndOfTheBlockDoNotCountAsIntructions.

@Test
public void branchesAtTheEndOfTheBlockDoNotCountAsIntructions() {
    int maxInstPerBlock = 3;
    IR ir = createIRWithEmptyCFG(maxInstPerBlock);
    int nodeNumberBefore = ir.cfg.numberOfNodes();
    Enumeration<BasicBlock> blocks = ir.getBasicBlocks();
    while (blocks.hasMoreElements()) {
        BasicBlock bb = blocks.nextElement();
        bb.appendInstruction(Empty.create(FENCE));
        bb.appendInstruction(Empty.create(FENCE));
        Instruction i = IfCmp.create(INT_IFCMP, null, null, null, null, null, null);
        bb.appendInstruction(i);
    }
    splitPhase.perform(ir);
    int nodeNumberAfter = ir.cfg.numberOfNodes();
    assertThat(nodeNumberAfter, is(nodeNumberBefore));
    assertThatInstructionCountForEachBlockIsAtMost(ir, maxInstPerBlock);
}

Example 65 with BasicBlock

use of org.jikesrvm.compilers.opt.ir.BasicBlock in project JikesRVM by JikesRVM.

the class GenerationContextTest method instanceMethodsHaveMovesInPrologue.

@Test
public void instanceMethodsHaveMovesInPrologue() throws Exception {
    NormalMethod nm = getNormalMethodForTest("emptyInstanceMethodWithoutAnnotations");
    CompiledMethod cm = new OptCompiledMethod(-1, nm);
    OptOptions opts = new OptOptions();
    InlineOracle io = new DefaultInlineOracle();
    GenerationContext gc = new GenerationContext(nm, null, cm, opts, io);
    InlineSequence inlineSequence = new InlineSequence(nm);
    assertThatInlineSequenceWasSetCorrectly(gc, inlineSequence);
    assertThatLocalsForInstanceMethodWithoutParametersAreCorrect(nm, gc);
    RegisterOperand thisOperand = getThisOperand(gc);
    BasicBlock prologue = gc.getPrologue();
    assertThatPrologueBlockIsSetupCorrectly(gc, inlineSequence, prologue);
    assertThatFirstInstructionInPrologueIsPrologue(inlineSequence, prologue);
    assertThatPrologueOperandIsRegOpFromLocalNr(prologue, thisOperand, 0);
    Instruction lastPrologueInstruction = prologue.lastRealInstruction();
    assertThatInstructionIsGuardMoveForPrologue(lastPrologueInstruction, thisOperand, gc);
    assertThatEpilogueIsForVoidReturnMethod(gc, inlineSequence);
    assertThatExitBlockIsSetCorrectly(gc);
    assertThatDataIsSavedCorrectly(nm, cm, io, gc);
    assertThatReturnValueIsVoid(gc);
    assertThatGCHasNoExceptionHandlers(gc);
    assertThatRegisterPoolExists(gc);
    assertThatChecksWontBeSkipped(gc);
    assertThatNoRethrowBlockExists(gc);
}